Canine/Feline- Giardia, Trypanosoma, Cystoisospora and Toxoplasma

Question 1

What is Giardia intestinalis Hosts?

Answer 1

dogs, cats, cattle………..humans?

Question 2

What is Giardia intestinalis Identification?

Answer 2

trophozoites- 21 μm

cysts- 12 μm

Question 3

What is Giardia intestinalis Site(s) of infection?

Answer 3

small intestine

Question 4

What is Giardia intestinalis Pathogenesis and lesions?

Answer 4

asymptomatic, trophozoites can cause acute focal inflammation

Question 5

What is Giardia intestinalis Clinical signs?

Answer 5

none, to acute or chronic diarrhea

Question 6

What is Giardia intestinalis Diagnosis?

Answer 6

fecal smear demonstrates cysts and trophozoites (if feces are unformed); fecal flotation with zinc sulphate; ELISA

Question 7

What is Giardia intestinalis Treatment and prevention?

Answer 7

parasiticides (benzimidazoles) and hygiene

Question 8

What is Trypanosoma cruzi Hosts?

Answer 8

Final hosts include dogs, cats, humans

Reservoir hosts are many species, wild and domestic

Question 9

What is Trypanosoma cruzi Identification?

Answer 9

elongated

trypomastigote in blood smear

Question 10

What is Trypanosoma cruzi Site(s) of infection?

Answer 10

muscle and blood

Question 11

What is Trypanosoma cruzi Pathogenesis and lesions/Clinical signs?

Answer 11

acute and chronic cardiac disease. Chagas’ disease. Puppies and kittens most susceptible

Question 12

What is Trypanosoma cruzi Diagnosis?

Answer 12

trypomastigote in blood smear. Xenodiagnosis or serological tests confirming infected animal

Question 13

What is Trypanosoma cruzi Treatment and prevention?

Answer 13

no satisfactory treatment known

Question 14

What is “Coccidiosis”?

Answer 14

infection with Cystoisospora, Isospora and/or Eimeria

Question 15

Coccidian parasites are members of of what order?

Answer 15

Eucoccidiorida

Question 16

What is Cystoisospora (Isospora) canis Hosts?

Answer 16

Hosts: final hosts are dogs. Paratenic hosts include rodents

Question 17

What is Cystoisospora (Isospora) canis Identification?

Answer 17

argest, 50 μm

Question 18

What is Cystoisospora (Isospora) canis Site(s) of infection?

Answer 18

small intestine

Question 19

What is Cystoisospora (Isospora) canis Pathogenesis and lesions/Clinical signs?

Answer 19

small intestinal cells destroyed. Diarrhea can be

severe, watery, profuse and bloody. Young dogs susceptible

Question 20

What is Cystoisospora (Isospora) canis Diagnosis?

Answer 20

oocyst, smaller than ascarid eggs (80-100 μm) and

larger than Sarcocystis spp (18 μm)

Question 21

What is Cystoisospora (Isospora) canis Treatment and prevention?

Answer 21

management is critical

Question 22

What is Toxoplasma gondii Hosts?

Answer 22

final host is cat and other felids. Intermediate hosts
include humans, warm blooded animals.
Zoonosis

Question 23

What is Toxoplasma gondii Identification?

Answer 23

oocysts in fecal examination of cat

Question 24

What is Toxoplasma gondii Felid infection?

Answer 24

Cats eating infected animals (rodents)

Direct transmission of oocysts

Question 25

What is Toxoplasma gondii Human infection?

Answer 25

Foodborne Animal to human Mother to child

Question 26

What is Toxoplasma gondii Site(s) of infection

Answer 26

both intestinal and extraintestinal cells (muscle, liver, lung, brain, etc)

Question 27

What is Toxoplasma gondii Pathogenesis and lesions/Clinical signs?

Answer 27

most animals asymptomatic. Clinical disease | in cat occurs. Depends on organs involved and extent of cells infected. Acute toxoplasmosis. Severe seen with FIV

Question 28

What is Toxoplasma gondii Diagnosis?

Answer 28

oocysts in cat feces. Serological tests are modified direct agglutination, ELISA and IFA Cats develop immunity after initial infection and shed only once in a lifetime – for 1-2 weeks

Question 29

What is Toxoplasma gondii Treatment and prevention?

Answer 29

Humans should avoid contact with feces from felid host Humans should avoid undercooked meat from intermediate host Pregnant women avoid contact with sources of oocysts Nonsulfonamides and sulfonamides are used